Rehabilitation system and calibration method thereof

Abstract

This invention discloses a rehabilitation system and its calibration method. The rehabilitation system includes a multi-source sensing module, a synchronization module, an identification module, a correction decision module, and a feedback module. The multi-source sensing module senses the rehabilitation movements of the user to generate rehabilitation images, inertial sensing signals, and movement trajectory signals. The synchronization module is time-synchronized with the multi-source sensing module to ensure that the rehabilitation images, inertial sensing signals, and movement trajectory signals are time-synchronized. The identification module generates a rehabilitation anomaly signal if the difference between the rehabilitation image and a preset rehabilitation image exceeds an image threshold. When the correction decision module receives the rehabilitation anomaly signal, it generates a correction signal based on the inertial sensing signal and the movement trajectory signal. When the feedback module receives the correction signal, it sends a correction message.

Claims

1. A rehabilitation system, comprising: A multi-source sensing module is capable of sensing a rehabilitation action of a rehabilitation user to generate a rehabilitation image, an inertial sensing signal, and a movement trajectory signal; a synchronization module is electrically coupled to the multi-source sensing module, the synchronization module transmitting a drive signal to the multi-source sensing module to cause the multi-source sensing module to transmit a transmission signal with a timestamp to the synchronization module, and receiving a corresponding transmission return signal with a timestamp from the synchronization module; wherein, the multi-source sensing module synchronizes its time with the synchronization module according to the timestamp of the transmission signal and the timestamp of the transmission return signal, and synchronizes the time of the rehabilitation image, the inertial sensing signal, and the movement trajectory signal; An identification module electrically coupled to the synchronization module, the identification module having a preset rehabilitation image, the identification module receiving the rehabilitation image through the synchronization module, and generating a rehabilitation abnormality signal when the difference between the rehabilitation image and the preset rehabilitation image exceeds an image threshold value; a correction decision module electrically coupled to the identification module, the correction decision module receiving the rehabilitation abnormality signal, the inertial sensing signal, and the movement trajectory signal, generating a correction signal based on the inertial sensing signal and the movement trajectory signal when the correction decision module receives the rehabilitation abnormality signal; and a feedback module electrically coupled to the correction decision module, issuing a correction message when the feedback module receives the correction signal. The correction decision module has an inertial threshold, a preset movement trajectory, a first trajectory difference threshold, and a second trajectory difference threshold; wherein the second trajectory difference threshold is greater than the first trajectory difference threshold; wherein, when the correction decision module receives the rehabilitation anomaly signal, the correction decision module compares the inertial sensing signal to be greater than the inertial threshold, and the difference between the preset movement trajectory signal and the movement trajectory signal is greater than the first trajectory difference threshold, and generates the correction signal accordingly; wherein, when the correction decision module receives the rehabilitation anomaly signal, the correction decision module compares the inertial sensing signal to be less than the inertial threshold, and the difference between the preset movement trajectory signal and the movement trajectory signal is greater than the second trajectory difference threshold, and generates the correction signal accordingly.

2. The rehabilitation system as described in claim 1, wherein, The multi-source sensing module includes: an image capturing module that continuously captures the rehabilitation movements of the person undergoing rehabilitation to generate the image signal; an inertial sensing module that senses the speed of the rehabilitation movements of the person undergoing rehabilitation to generate the inertial sensing signal; and a radar module that senses the movement trajectory of the rehabilitation movements of the person undergoing rehabilitation to generate the movement trajectory signal.

3. The rehabilitation system as described in claim 1, wherein, The multi-source sensing module further includes: a physiological sensing module, which senses the physiological state of the person performing the rehabilitation action to generate a physiological signal.

4. The rehabilitation system as described in claim 3, wherein, The correction decision module has a physiological threshold value. When the physiological signal exceeds the physiological threshold value, the correction decision module issues a warning signal.

5. The rehabilitation system as described in claim 2, wherein, When the feedback module receives the correction signal, it sends a reminder signal to alert the rehabilitation user. The feedback module is connected to a vibration motor or an electrical stimulation unit. When connected to the vibration motor, the feedback module sends the reminder signal to the vibration motor, causing it to vibrate to alert the rehabilitation user. When connected to the electrical stimulation unit, the feedback module sends the reminder signal to the electrical stimulation unit, causing it to emit electrical waves to alert the rehabilitation user.

6. The rehabilitation system as described in claim 1, wherein, The rehabilitation system further includes a cloud device connected to the correction decision module, which can upload the rehabilitation images, inertial sensing signals, and movement trajectory signals of the rehabilitator for recording.

7. The rehabilitation system as described in claim 6, wherein, The rehabilitation system further includes a terminal device connected to the cloud device, and the terminal device can send a rehabilitation suggestion signal to the correction decision module based on the rehabilitation image of the rehabilitator, the inertial sensing signal, and the movement trajectory signal of the rehabilitator in the cloud device, so that the correction decision module can issue a rehabilitation suggestion message.

8. A method for correcting a rehabilitation system, comprising the following steps: A synchronization step: A synchronization module transmits a drive signal to a multi-source sensing module, causing the multi-source sensing module to transmit a transmission signal with a timestamp to the synchronization module, and receives a corresponding transmission return signal with a timestamp from the synchronization module; wherein, the multi-source sensing module is time-synchronized with the synchronization module according to the timestamp of the transmission signal and the timestamp of the return signal; A multi-source sensing step: The multi-source sensing module senses a rehabilitation action of a rehabilitation patient to generate a rehabilitation image, an inertial sensing signal, and a movement trajectory signal; wherein, the rehabilitation image, the inertial sensing signal, and the movement trajectory signal are time-synchronized; An identification step: An identification module receives the rehabilitation image through the synchronization module, and if the difference between the rehabilitation image and a preset rehabilitation image exceeds an image threshold, the identification module generates a rehabilitation abnormality signal. A corrective decision-making step: A corrective decision-making module receives the rehabilitation abnormality signal, the inertial sensing signal, and the movement trajectory signal. When the corrective decision-making module receives the rehabilitation abnormality signal, it generates a corrective signal based on the inertial sensing signal and the movement trajectory signal. A feedback step: When a feedback module receives the corrective signal, it sends a corrective message. The correction decision module has an inertial threshold, a preset movement trajectory, a first trajectory difference threshold, and a second trajectory difference threshold; wherein the second trajectory difference threshold is greater than the first trajectory difference threshold; wherein, when the correction decision module receives the rehabilitation anomaly signal, the correction decision module compares the inertial sensing signal to be greater than the inertial threshold, and the difference between the preset movement trajectory signal and the movement trajectory signal is greater than the first trajectory difference threshold, and generates the correction signal accordingly; wherein, when the correction decision module receives the rehabilitation anomaly signal, the correction decision module compares the inertial sensing signal to be less than the inertial threshold, and the difference between the preset movement trajectory signal and the movement trajectory signal is greater than the second trajectory difference threshold, and generates the correction signal accordingly.

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